*{
  margin: 0;
  padding: 0;
  font: 14px/14px "微软雅黑";
  font-weight: 400;
  box-sizing: border-box;
}
.clearfix:after{
  content:".";
  display:block;
  height:0;
  clear:both;
  visibility:hidden
}
li{
  list-style: none;
  border: none;
}
a{
  text-decoration: none;
  color:#333;
}
h1 h2 h3 h4 h5 h6 header footer{
  padding: 0;
  margin: 0;
}








